Refrigerating apparatus



Jan. 29, 1929. f 1,700,335

E. w. RVAICHE REFRIGERATING APPARATUS Filed June 20, 1927 [R1755 r Rw/crm',

.By: Jaw;-

Patented Jan. 29, 1929.

UNITED STATES PATENT OFFICE.

ERNEST W. RAICHE, OF LOS ANGELES, CALIFORNIA, ASSIGNOB TO RAICHE MANUFAC- TUBING COMPANY, 0]? LOS ANGELES, CALIFORNIA.

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Application filed June 20, 1927. Serial No. 200,073.

This invention relates to devices used for refrigerating and cooling purposes.

One of the objects of this invention is to eliminate bulky machinery and cooling chambers.

. Another Object is to consolidate, combine, or unite the refrigerating chamber with hardening chambers and cooling compartments in one compact comparatively small apparatus.

Another object is to arrange a cooling room of comparatively small size adjacent to a refrigerating apparatus controllable-by a single compressor. I

Another object is to provide a' compact unit inclosing a refrigerating section, a hardening section and a cooling section, the several sections arrangedin such an order as to maintain different temperatures by a common refri erating and cooling source.

ther objects will appear from the following description and appended claims as well as from the accompanying drawing, in which- Fig. 1 is a horizontal section through a simple box-like structure, embodying a refrigerating chamber, hardening chambers and a cooling chamber designed according to this invention.

Fig. 2 is a front elevation of a box-like structure designed and arranged according to this invention, having a motor roughly outlined on top with means whereby anagitator within the refrigerating section may be operated.

In ice cream refrigerating,'an agitator is commonly arranged in an ice cream freezing tank constantly in motion, and coils ofpipes are connected toacompressor. The frozen ice cream handle in such a refrigerator, or agi;

tator, or freezing tank, is generallafter.

freezing placed in hardening cham ers of comparatively bulky size. A further sepa-' rate. compartment is commonly required, in t which the temperature is maintained at a suitable degree for merely keeping matter slightly cool above or near the freezmg tem-. perat'u're.

In common stores, or vending, or dispens ing places-such comparatrvel bulky chambers and apparatus cannot a tained for lack of room.--

The herewith disclosed apparatus is there fore principall designed to provide a unit ways be main-.7.

embodying a fi'eezing section, ahardening common salt brine is inserted As illustrated in the drawing, coils are provided within the whole apparatus'to be connected toa compressor, not shown in the drawing. The inlet end of the compressor coil line is indicated at 3, encircling an ice freezing tank 4 starting at a point near the bottom and winding to a point near the top and from the upper coil continuing into the next section as indicated at 5. The next section includes a group of hardening tanks 6. The pipe line from the point 5 is continued downwardly and then arranged to encircle in a second coil the first two hardening tanks 6 and in a similar manner again from the top pointindicated at 7 brought to continue from a point near the bottom in a third coil to extend to a point near the top around the second two hardening tanks. 6 to again continue from the top coil, indicated at B, downwardly coil the last two tanks of the group of hardening tanks 6 from a point near the bottom to a to. for a fourth time, encircle in a continuous point near the top of thesetanks to finally brin the coil pipe line to discharge from the whole apparatus asindicated at 9. v

The whole coil including the ice cream freezing tank 4 and the hardenin tanks 6 are imbedded in a mass of brine in icated at 10 within a sheet iron inner casing 11.

The brine indicated at 10,surroundin g in common the ice freezing tank 4as well as the several hardening tanks 6, is preferably a calcium brine.

.The casing 11 is inclosed in an outer housing 12, spaced by a corkinsulation or padding 13, inserted between the casing 11- and the housing 12.- i

. A removable ice cream "holding container .14 is disposed within the ice crea freezingf tank 4, having also an agitator 15011 the shaft 16 indicated within 'the'container 14, whichf ma be of any well known type, not particular yvdescribed or claimed in. this a plication. The-shaft 16- is illustrated inFl gearslS.

Between the ice cre'am freezing tank 4 ant the container 14a refrigerant preferably of and disposed as indicated at 19in Fig. 1.

- Ice cream may be 'sposed 2 as .operatively connectedto"a motor 17 y in the container i 14 and frozen in any well known manner by] f vooeae This cooling chamber is provided with a coil 23 in communication with the brine 10 in the adjoining larger chamber the coil communications being indicated at 24 and 25, whereby the brine 10 of the larger compartment is caused to circulate through the coil 23 by reason of the fact that the topol the mass of brine is naturally warmer than the bottom the one communication be ing made at a lower point, While the other communication being arranged at 'a higher point between the two compartments, so as to produce an automatic circulation of the brine from the larger compartment through the coil 23..

This circulation of brine from the larger com artment through the coils 23 in the sma er compartment '22 is sufiicient to cool milk, butter and other articles above referred to.

By arranging the several comparatively small hardening tanks 6 in a common compartment together with the ice freezing tank lwithin a common mass of brine 10 in the manner illustrated in the drawing and described above makes it possible to accomplish results thatcan commonly only be gained with much larger hardening boxes and compartments,

hardening tanks arranged together with the ice cream freezing; tank within one housing and-within a common mass of brine assures, furthermore, a more economical. use of brine and other refrigerant-s than could be possible with arrangements automatically circulating refrigerant where the ice cream freezing tank is in a sepa rate apparatus and the'hardeniiig tanks also in a separate comparatively large box or structure. Using, furthermore, the calcium brine from the ice cream freezing and l1ardening compartment in a coil disposed in the adjoining cooling compartment assures a fun ther reduction of structures in this compact unit.

Having claim: I

1. A refrigerating apparatus'consisting of a common housing mcasing an ice cream thus described my invention, 1

freezing unit, a hardeningnnft, and a cooling unit, the lee cream freezing unit and the hardening unit being encircled by a common cooling coil consisting of distinct coil sections with the coil sectionthat encircles the hardening unit following and continuing from the coil section that encircles the freezing unit and the whole coil embedded-in a common refrigerant, and the cooling'unit having acooling coil in communication with said refrigerant.

2. A refrigerating apparatus comprising :1,

housing having a partition forming a larger and a smaller compartment, a refrigerating unit disposed in the larger compartment, :1

hardening unit composed of several tanire disposed in the larger compartment besides the refrigerating unit, a pipe coil with outside connections from the housing disposed in the larger compartment encircling the two above cited units in a consecutive manner, refrigerant dis osed in the larger co'm artmeritv around t 0 two units and aroun the coil, another coil communicating throu h i said partition with the refrigerant 1n tie larger compartment being disposed in the smallercompartment close to thewalls thereof and encircling this compartment by which the smaller compartment is cooled with the from the larger compartment.

In testimony that I. claim the foregoing as my invention I have signed my name.

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